Combined bathtub and shower stall



FIG. 1 is a perspective view taken from the top, front and right end of a combined bathtub and shower stall showing my new design;

FIG. 2 is a top plan view thereof; and

FIG. 3 is another perspective view taken from the top front and left end thereof.

The broken line representation of plumbing fixtures in FIGS. 1 and 3 are for purposes of illustration only. 

The ornamental design for a combined bathtub and shower stall, as shown and described. 